We compared the effects of water resource development on migratory fish in two North American rivers using a descriptive approach based on four high-level indicators: (1) trends in abundance of Pacific salmon, (2) reliance on artificial production to maintain fisheries, (3) proportion of adult salmon that are wild- versus hatchery-origin, and (4) number of salmon populations needing federal pro...

We extend the existing work on the time-optimal control of the basic SIR epidemic model with mass action contact rate. Previous results have focused on minimizing an objective function that is a linear combination of the cost associated with using control and either the outbreak size or the infectious burden. We instead, provide analytic solutions for the control that minimizes the outbreak siz...

We describe a simple but effective method for cross-lingual syntactic transfer of dependency parsers, in the scenario where a large amount of translation data is not available. The method makes use of three steps: 1) a method for deriving cross-lingual word clusters, that can then be used in a multilingual parser; 2) a method for transferring lexical information from a target language to source...

This paper describes a bootstrapping algorithm for acquiring a lexicon of subjective adjectives which minimizes the recourse to external resources (such as lexical databases, parsers, manual annotation work). The method only employs a corpus tagged with part-ofspeech information and a seed set of subjective adjectives. The list of candidate subjective adjectives is generated incrementally by lo...

The present paper brings out a mathematical model of Ammensal-enemy both immigrated species pair with limited resources. This model is built by a couple of first order non-linear ordinary differential equations. One and only one equilibrium point of this model is traced and the stability criteria at this equilibrium point are derived. Solutions for the linearized perturbed equations are ascerta...

A number of strategies have been advocated to increase the number of lung donors including: 1) improvement in donor resuscitation; 2) better methods of lung preservation; 3) extension of the lung donor selection criteria; 4) development of a living-related lung donor programme; and 5) utilisation of nonheart beating donors. Other strategies such as the split-lung technique and techniques of lun...

Over the last 30 years or so many results have appeared on the descriptional complexity of machines with limited resources. Since these results have appeared in a variety of different contexts, our goal here is to provide a survey of these results. Particular emphasis is put on limiting resources (e.g., nondeterminism, ambiguity, lookahead, etc.) for various types of finite state machines, push...

We analyze different methods of sorting and selecting a set of objects by their intrinsic value, via pairwise comparisons whose outcome is uncertain. After discussing the limits of repeated Round Robins, two new methods are presented: The ran-fil requires no previous knowledge on the set under consideration, yet displaying good performances even in the least favorable case. Themin-entmethod set...

This paper presents a probabilistic model for studying the question: given n search resources, where in the search tree should they be ezpended? Specifically, a least-cost root-to-leaf path is sought in a random tree. The tree is known to be binary and complete to depth N. Arc costs are independently set either to 1 (with probability p ) or to 0 (with probability l-p ). The cost of a leaf is th...

In this paper we present our preliminary investigation of rational agents who can learn from their experience. We claim that such agents need to combine at least three attributes – deductive reasoning based on currently possessed knowledge, inductive learning from their history, and awareness of passing time (including the necessity to commit computational resources to tasks which need to be ca...